Which statement is true regarding the following code, assuming reader is a FileInputStream object? char ch = (char) reader.read();
I you cannot determine if you have reached the end of input
II this code will throw an exception if we are at the end of input
III read returns an int, so the cast is illegal
A) I
B) II
C) III
D) I and II

Question

Quizplus · Accepted Answer

The read() method of FileInputStream returns -1 when the end of the stream is reached, so without checking for this value, you cannot determine if you have reached the end of input.

Which Statement Is True Regarding the Following Code, Assuming Reader